Black Leaves on Asian Pear Tree

kaisersoze(10a - San Diego)April 20, 2013

Hello,

Just recently planted this asian pear tree about 1 month ago and many of the new leaves have turned black. The branches do not appear affected at all, only the new leaves. Does it need more water since it has been a sunny and hot spring in San Diego, or is it fire blight?

Thank you for reporting this comment. Undo
kaisersoze(10a - San Diego)

Close-up of one branch with black (dry) and green leaves

    Bookmark   April 20, 2013 at 7:52PM
Thank you for reporting this comment. Undo
canadianplant

Did you not have a cool wet winter down there?

    Bookmark   April 21, 2013 at 8:15AM
Thank you for reporting this comment. Undo
Dzitmoidonc(6)

Look around on the net for signs of Fireblight. It is a bacterial disease and Asian Pears are known for getting it.

    Bookmark   April 21, 2013 at 9:21AM
Thank you for reporting this comment. Undo
kaisersoze(10a - San Diego)

Thank you for the replies.

We always have a cool winter, definitely not wet as we are well below the average rainfall this year to date.

I have looked at the pictures of fireblight on the internet, they appear different as they all include signs of damage to the branch itself and all show pictures of mature leaves afflicted by fireblight. My tree is newly planted and many of the new budding leaves are afflicted.

I was hoping someone could render an opinion or diagnosis

    Bookmark   April 23, 2013 at 12:38PM
Thank you for reporting this comment. Undo
ahajmano(sunset 23, Mission Viejo CA)

I think it is a deficiency of the I un established roots from providing sufficient moisture to the new leaves. We have had a week of hot and dry weather here, which could easily scorch the new leaves. I have had some pressure from brown spot as well ( caused the thick morning and persistent marine layer early April).

I say leave it for a few 'months and make sure you check soil moisture. If it looks dead two months from now, pull it out.

    Bookmark   April 23, 2013 at 1:12PM
Thank you for reporting this comment. Undo
milehighgirl(CO USDA 5B/Sunset 2B)

I agree with ahajmano, I have had several pear trees do this before they are established. I would give it consistent water and maybe even some shade to help it get established. The branches are still green and look pliable so it's not a loss yet.

    Bookmark   April 23, 2013 at 1:20PM
Thank you for reporting this comment. Undo
ahajmano(sunset 23, Mission Viejo CA)

ditto. Shade it from afternoon sun, I lost two bare root pear trees before i learned to put them on the east side of the house in a container for the first month or two of leaf-out.

    Bookmark   April 23, 2013 at 5:50PM
Thank you for reporting this comment. Undo
kaisersoze(10a - San Diego)

Thanks for the tip! I planted it on a west facing slope and it gets lots of sun and a steady breeze. I'll have to jerry-rig some sort of post and tarp to shade it, unless you have a clever way to shade an inground plant on a breezy slope?

    Bookmark   April 23, 2013 at 8:45PM
Thank you for reporting this comment. Undo
charlieboring

Looks like fire blight. My trees get it.

    Bookmark   April 24, 2013 at 7:20AM
Thank you for reporting this comment. Undo
milehighgirl(CO USDA 5B/Sunset 2B)

CharlieBoring, I thought it might be fire blight on my small pears but fb seems to start at the tip of a branch and affect the whole tip, branch and all. kaisersoze doesn't have the typical shepherd's hook. I don't have much experience with fire blight but I did have some on a really late blooming apple last year.

Whatever it was on my pears I found that easing the stress helped them get over it.

    Bookmark   April 24, 2013 at 3:02PM
Thank you for reporting this comment. Undo
kaisersoze(10a - San Diego)

Might be overkill, but I put a screen on the western side of the tree to shade against the afternoon sun:

I used this elaborate setup because I plan to reuse the wood for another project once the leaves hopefully take hold

    Bookmark   May 1, 2013 at 2:37PM
Thank you for reporting this comment. Undo
steve333_gw

I'd agree that it looks like water/wind stress on the leaves. My asian and regular pears show this on new growth, especially if it is dry and windy for a spell.

    Bookmark   May 1, 2013 at 2:49PM
Sign Up to comment
More Discussions
What type of grafting tape do you use?
Last year I used electric tape and got about 98% success...
Mike Hughes
mango seed ..is it dead?
The Whole outside of it is black .. Is it dead? I looked...
Trisha Stewart
Pictures missing!
Have you noticed, since Houzz took over allot of pictures...
Konrad..just outside of Edmoton Alberta
Too new to know...is this root acceptable?
I'm new to Orcharding and to GardenWeb (what an incredible...
GuardinDawg
Something ate part of this apple tree
This a seedling I started last year. Last night something...
Orchardman
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™